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EN 1.4821 Stainless Steel vs. EN 1.7701 Steel

Both EN 1.4821 stainless steel and EN 1.7701 steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4821 stainless steel and the bottom bar is EN 1.7701 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200 to 480
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 730
670 to 2010

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 17
44
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.6
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.9
Embodied Energy, MJ/kg 41
26
Embodied Water, L/kg 160
52

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 26
24 to 71
Strength to Weight: Bending, points 23
22 to 45
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 21
20 to 59

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.48 to 0.56
Chromium (Cr), % 24.5 to 26.5
0.9 to 1.2
Iron (Fe), % 64.2 to 71.1
96.2 to 97.7
Manganese (Mn), % 0 to 2.0
0.7 to 1.1
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 3.5 to 5.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.8 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0.1 to 0.2